Floyd had one very good year, 2008 where he went 17-8 w a 3.84 era. For the last 4 years he has been a .500 pitcher who will give you 30 starts. However his ERA the last 2 years has jumped a little from 4.00 to 4.30. He is an average # 4 AL starter on a decent team.

The point overall is that a pitcher's W-L record is kind of a pointless stat; Floyd may be .500 since 2009 but in that time, he's also had only 5 cheap wins (wins in non-QS starts) and 11 tough losses (losses in QS). The Sox bullpen has also lost more games where he was in line to win than the offense has come back to win games for him over that span.

Floyd's certainly had his struggles, but citing his W-L record doesn't really show anything of value.